Computing scale



Nov. 22, 1927.

w. R.' MITTENDORF COMPUTNG SCALE Filed sept.

2s.' 1922 '1 sheets-sheet 1' akku/nu, 5

Nov. 22,1927.

w. R. MITTENDORF comUTINGl SCALE Filed sept. 2s, 1922 7 sheets-sheet 2 f i nngewtoz w. l?. M/TTENDORF.

.attenant w. R. MITTENDORF COMPUTING SCALE.

. 23. 1922 '7 Sheets-Sheet 4 Filed Sept Nov. y22, 1921 'l Sme/vwo@ W. R'M/TTENDaR/ '7 'sheets-sheet 5 w. R. MITTENDORF coMuTING SCALE Filed sept. 23. 192.2

Nov. z2, 1927. v15155505224 W. R. MITTENDQRF y COMPUTING rscmmY Patented Nov. 229 1927.

UNITED STATES PATENT OFFICE.

WILLIAM R. `MITTENDORF, OF CINCINNATI,v OHIO, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE WATSON EXPERIMENTAL yLABORATORY COMPANY, OF DAYTON,

OHIO, .A CORPORATIONOF OHIO.

COMPUTING SCALE.

.Application led September 23, 1922. Serial 170.590,085.

This invention relates to computing scales and one object of t-lie invention is to provide a computing scale which will be fully autov matic in its action so4 as not to require any mechanical manipulation on the part of the operator, other than the placing of the proper unit in the unit pan, when the number of articles in a mass is to be determined, or the adjustment of a price per pound indicator when the money value of a given commodity is to be computed.

Afurther object of the invention is to provide such a scale which can be used to determine the number of parts in a lot of unknown quantity, as well as to make up lots or parts of some certain predetermined quantity, with the capacity of the scale.

A further object of the invention isr to provide a scale which will count parts of any odd unit of Weight ,within its capacity and indicate the number of parts in the lot Without in any manner changing the rnechanical multiplication of leverage which exists in the scale.

A further object of the invention is to provide a counting scale. which Will indicate the number of parts in the lot and the Weight of the load simultaneously.

A urtherobject of the invention is to provide a scale by means of which the money value of a commodity may be determined at any price per pound Within the price range 'of the scale by the use of a single series of money value graduations; and to obtain the computation automatically.

A further object of the invention is' to provide a scale which will indicate vthe money value of a commodity and the weight of the commodity simultaneously.

A further object of the invention is to provide a scale having a relatively wide range and a large assortment of prices per pound and which will be of such a. construction that the assortment ofprices per r pound can be readily changed without in any manner infiuencing the balance or correct operation of the scale.

, A further object of the invention is to provide a scale which can be used either as a counting scale to determine the number of articles in a lot or as a price scale to determine the value of a'commodity at a given price er pound.

A .urther object of the invention is to provide a computing scale of this charac- 5 is a front elevation, with the casing in section, ot a combined counting and money value scale embodying my invention; Fig. 6 is a rear elevation of such a scale; Fig. 7 is a -sectional view taken on the line 7 7 of Fig. 5; Fig. 8 is a detail viewof a portion of the chart showing the same in its adjusted position; Fig. 9 is a sect/ion taken on the line 9-9 of Fig. 5; Fig. 10 is a section taken on the line 10-10 of Fig. 5; Fig. 11 is a plan view, partly in section, of the chart adjusting device shown in Fig. 5; Fig. 12 is a side elevation of the same; Fig. 13 'is a detail View of the cam for adjusting the 'chart and it-s actuating segment; Fig. 111 is a front elevation of a modified form of the invention; Fig. 15 is a sectional View show# ing the mechanism of Fig. 14 in end elevation; Fig. 16 is a plan view of the segments of Fig. 14; Fig. 17 is a4 detail View of portions of the indicating devices of Fig. 14; showing .the same in their adjusted positions; Fig. 18 is a front elevation, showing a further modification of the invention; Fig. 19 is a similar View withthe indicating devices removed; and Fig. 20 is an end elevation of the mechanism shown in Fig. 18.

In carrying out my invention I have provided a computing device consisting of two indicating members, one of which is in the form of an elongated chart having a series of graduations extending lengthwise thereof and the other of which is in the form of a long-thin indicating member, such as a wire, which is mounted independently of t-he chart. These indicating members are, in the present instance, so arranged that they will normally Aoccupy positions substantially parallel one with the other, preferably with the` wire in front of the chart and .registering with the center-line thereof.l One of 'the indicating members is mounted for transverse movement toward and from its normal position and this movement is preferi l ably imparted thereto by operatively conneeting the same with a load balance. The other indicating member 1s movable into a yposition in which it will intersect the first is to be used as a counting scale or by connecting it with an adJustable price per oun'd indicating device when the scale is to 'ide used as a money value computing scale. The load balance and the unit balance,l or price per poundsetting dev-ice, are entirely separate one from the other and there is no connection whatever between the indicating members.

The mechanism of thescale may be arranged in various ways and may take various forms and in the-present drawings I have shown several embodiments thereof, but it will be understood that these have been chosen for the purpose of-illustration only.

In one form of my invention I have provided two normally separate weighing mechanisms, or balances, having associated therewith means for'causing the movements thereof to cooperate to indicate, on a computing device, the ratio between the loads on thel two balances. rIfhe particular embodiment of the deviceshown in Fi s. 1 to 4 comprises a counting scale only an ma be used to determine the number of articles in a given mass of articles or to count out a given number of articles of a given character. As here shown, the scale comprises a base 1 having mounted thereon an upriglit'casing, or housing, 2 and the mechanism of the scale is mounted upon this base and arranged within the housing.' The scale comprises two separate and distinct balances, the larger of which constitutes a load balance and comprises a main lever 3 pivotally supported at 4 flmlxgnright standards- 5 carried by the base upported by this main lever is a load receiving platform, or pan, fwhich is here shown as mounted in a suitable holder. 7

`pivotally supported on the lever 3 on knife edge bearings. The load latforin is maintained in its upright position by-means of a stem'8 de ending from the holder 7 through the 'top o the base 1 and connected by a linkv 9 to a stationary 'stem 10 depending from the top wall of the base. The longer arm of the main lever 3 is operatively connected with one of the indicating devices and as here shown this end of the lever is. rovided with a nosenon 11 having a nee e point 12 engaging in a socket in a stirrup 13, which is connected by a strap, or ribbon, 14 with a cam 15. This cam is rigidly, but adjustably, secured to a shaft, or pivot bar, 1G which is supported at its ends in bearings carried by the casing 2. Rigidly secured to the shaft 16 is a member 17 having connected therewith a weight indicator, orpointer, 18, the end of which travels over a chart 19 graduated in pounds `and ounces, the member 17 serving as a counter weight for the pointer. Also connected with the shaft'or pivot bar 16, preferably through the medium ot' the member 14, is a pendulum rod 20 on which is mounted the usual pendulum 21. Preferably a pendulum of the reversed type is used, and as here shown the pendulum is held normally in its elevated position by .the weight of the lever 3 and when the end of the lever is raised by a load on the platform 6 the pendulum will move downwardly and actuate the indicating members connected therewith, the movement of the pendulum being in direct proportion to the weight of load. Pivotally mounted on the axis of the pivot bar 16 and preferably rigidly connected with the supporting member 17 is an arm 22 and pivotally mounted in the casing 2 in line with the axis of the arm 22 is a second arm 23 arranged parallel with and f equal length with the arm 22, the arm 23 being moves about a common axis therewith. This" link carries bne of the two indicating members constituting the computing device of the scale. In the present instance, this indicating member is in the form of a wire 26 supported in a vertical position.. As here shown, the link 25 is in the form of a diamond shaped structure, having its upper and lower ends extended to form arms 27 and 28 with which the respective ends of the wire are connected by means of studs 29. It will be noted that the movement will be imparted 4 to the weight indicator' 18 and to the arms 22 and 23 by the pendulum 21 when la load has been placed in the pan 6 soas to raise the nd of the lever 3, and thus permit the pen-- ulum 'to move downwardly. The movement -thus imparted to the weight indicator 18 and the arm 22 will move the link and the indicator Wire 26 carried thereby transversely to the length of the wire, the wire being maintained at all 'times in a true vertical sition. In order that the link 25 and the indicator wire 26 may be maintained in their 'proper vertical p anes during their trans-A ing, which may be accomplished by rigidly securing to the link brackets to which the arms are attached. Antifriction side contact points are provided for the pivotal connections between the link and its supporting arms in the form of small conical headed bushings a1 inserted in the link and are arms respectively. Pivot pins 32 and 33 pass through these bushings and form bearings vside contact bearings may be for the link. If desired, the same type of used betvveen the arm 23 and the casing 2 at the fulcrum point of the arm 23, at which point the pin 34 forms the bearing.

Preferably, the main lever 3 of` the load balance is provided with a dash pot 35 of the usual construction and arrangement. I .have also shown this main lever as having connected therewith a tare beam 36 on which is -mounted a tare Weight 37 which serves to counterbalance the Weight of any receptacle which may be placed upon the load platform or. pan 6.

The cam 15l is so shaped that the horizontal movement of the indicating Wirel 26 will be evenly graduated from zero to the capacity of the scale. In otherwords, the successive units of weight on thenplatform `6 will move the indicating member equal horizontal distances, this being essential to the proper operation of the counting scale. As

the movement of the indicating member 26 is substantially parallel to a horizontal plane it will be apparent that the evenly graduated movements thereof will produce uneven movements of the -weight indicator, or pointer,18, the point ofwhich moves in an arc, and to com 4ensate for this movement i vgra nations on t evveightl chart 19 are uneven.

z As has been stated, the scale is also provided with a second balance which, in the resent form of the scale,

, alance and comprises a lever 38 pivotally mounted at 39 in suitable bearings formed.

in a bracket 40 carried by the casing 2. A unit receptacle, or pan, 41, is pivotally connected with the uter end, or nose, lof the lever 38 and the lever in the usual manner with the unit the other end i cam 44. The stra-p. 43 may be connected with pan 41, a strap,.'or ribbon 43,

the lever 38 in any suitable manner, but, as

here shown', the lever is provided with a recess bridged by a bar 46 `having a.' needle point 47 which enga es the socket in a stirrup 48 secured to tlgae strap 43. The cam 44V is rigidly but adjustably secured to a shaft, or pivot bar, 49 supportedat one end n'a bearing 50 carried by the casing 2 and at the other end ina bracket 5.1 secured to the casing. Operativelylconnected with the constitutes a unit 38 is counterbalanced by a weight 42. The vlever 38 has connected therewith bet-Ween its fulcrum point 39 and the point of connectionb of` which is connected with a b unit balance leverl- 38 is the second indicating member, or chart, 52 which is herel shown as a vlong flat blade provided with a longitudinally extending series of: gradua- Vtions arranged along a central line and numbered. Preferably this chart is voperatively connected with. the lever 384 by rigidly at.

taching the same at its upper end to a mem' ber 53 "which in turn is rigidly secured to the shaft, or pivot bar, 49. It will be ap-` parent that When'a unit isplaced inthe unit receptacle 41 the lever '38 and cam 44 will be actuated, thus rocking the vchart 52 about the axis of the pivot bar 49 and moving the same into. a position extendingobliquely to the vertical line of the'indicator Wire 26 and in which position it will inter-4 sect vthe Wire 26, if the tWo indicating-members are in proper relation one to the `other. Itvvill be noted that in the present instance the chart, or blade, 52 serves as a pendulum to counterbalance the weight-of the unit in the pan 41, but this is-not an essential part j of the invention and the unit in the pan may i be counterbalanced in any suitable manner,

"and, when the chart does not serve. as a pendulum it will serve merely asan agent to carry-the -graduations and numerals.- .Also it will be noted that the lever 38 is-provided with a dash pot 54 of the' usual construe#` tion.

mining the number of articles in. a lot, or

This apparatus may be utilized for determass, offart-icles of uniform`weight, or for counting out a specified number-of such articles. When the load balance and the unit balance, are in their normal, or zero, posi,

tions, that is,- when both the load platform 6 and the unit pan 41 are empty, the indicator wire 26 will' -extend parallel With the center lineY of the indicator chart 22 and preferably will 4lie directly in front of that line. To vdetermine the number ofl articles: in

amass of articles the mass-is placed upon move thechart into such a position that the the capacisa to the weight of the mass is s'uicien't to center line thereon will intersect the Wire, i

the graduation at the point of' intersection represent the result of the computatlon, that is, the number of articles on the scale.

In the present instance, this indication Will represent the total number lof articles on the scale, including thugs on 'tle load platform Vand the one or more in the unit pan.l A To acmei-als, the one marked under the heading complish this, the pivotal point of the indicator chart 52 is arranged on an axis coincident with the first graduation from zero thereon, and thus the intersection of the indieator wire 26 with the center line ofthe chart will always register one graduation plus, ,which automatically allows for the part or parts .in the unit pan. It will be noted that thc indicator chart is provided with a plurality of vertical series of numer als correspondingr to the graduations along thel center lme thereof. One series of nu- 1, corresponds to the number of graduations when a single unit is in the panv il this series of numerals Will represent the number of articles on the load platform.A In the present instance, there are' five other series of numerals arranged in such relation to thev graduationsv that they will represent multiples of the ,corresponding numer als in the first mentioned series.. As here shown, these other series of numerals are numbered 2, 5, 10, 20 and 40 and these numbers represent the number of articles on the load platform necessary to move the wire the distance of one graduation, on the chart when units vcomposed of 2, 5, 10, 20 or 40 parts respectively are in the pan 41; As hasbeen stated, if a unit consisting of one artivcle when placed in the unit pan will move the chart'into a position in which it will intersect the Wire the numeral in series 1 corresponding to the graduation intersected by the Wire Will represent lthe .number of articles on the scale. If, however, a single article does not move'the chart far enough to intersect the Wire as would frequently be the` case Where small articles were 'being .counted in' relatively large bulk an yadditional number of articles are placed in the unit pan, in the present instance leither 2, 5, 10, 20 or 40 articles, and the'reading of the chart is taken in. that series of numerals corresponding-to the number of units or articles in the unit pan. Consequently, to determine the number of articles in a mass the operator has onlyto place the 'mass of articles -on the load platforml and then place in the unit pan a suicient .number of articles to cause the center line of the chart to intersect the wire :and then take the reading from' the chart in that series of numerals correspond- A. ing to the number of articles in the unit pan.

In order to count out acertain specified number of articles one o r more articles are placed in the units pan and then additional articles are placed on the load platform until the wire is moved to such a position that it will intersect the graduation representing the number of articles desired. For example, if it is desired to count out one thousand articles it will be apparent from an examination of the chart that the number5 column thereon wouldhave to be used because neither column l, nor column 2 registers as high as one thousand. yThe operator would, therefore, place five articles in the unit pan and then place the articles to be counted on the load platform until the indicating Wire moved over to such a position that the wire would intersect the center line at that graduation represented by the numeral 1000 in the'No.. 5 column. He would then have 995 articles on the load platform and 5 in the unit pan, making a total of 1000 articles on the scale. Consequently, the correct computation of the number of articles On the 'scale requires no calculation on the part of the operator and no manipulation of the mechanism of the scale, other than the placing of the necessary unit in the unit pan and the placing of the mass of articles on the load platform. When this has been done the computation is automatically effected and it is only necessary to take the reading from` the chart.

The same principle here involved can be utilized for computing money values as well as for counting purposes. The money value computing feature may be embodied in a scale designed for computing money values only and having no counting operation, but in the present instance I have, for the purpose of illustration, shown the money value computing feature as combined 4with the counting feature so that the scale may be used either to compute the number of articles on the scale or to compute the money value of a commodity on the load platform at a selected price per pound. This combined scale embodies all the mechanism heretofore described and in addition thereto has means for controlling the movement of the lchart according to the price per pofund.

This scale may beso constructed that the Weight of the commodity on the load plat form, the price per pound at which the value is being computed, and the result of the computation will be visible both to the custemer and to the salesman. To this end the scale is provided-not only with the weight chart 19 on thevfront thereof, that is, the side adjacent to the salesman, but also with a weight chart 56 on the rear side of the the hub of the segment, the axis of the ivot bar being coincident with the axis o the toothed segment.

The segment 58 is held Acasing 2 in which position it may be read by the customer.

- against axial displacement by the supportying bracket 59 which has bearing ina groove 61 in the hub ofthe segment. Meshing with the segment `58 isfa mutilated pinion, or segment, 62 carried by a shaft 63 journaled in the casing, 2, and having connected therewith an operating member 64 which inthe present instance is yin the form of a handle provided withipointers 65 'and 66 traveling over the `gradua'tions on the respective sides of the `price per p ound'chjart'?. The oper- 'atin `me'mber`or indicator, 64 may be held in a justedA positionsin. any suitable manner, b utgas here shown, I have confined a sprang 67 between a collar 68 on the shaft 63 andl the wall of thecasing and this spring pro- ".duces sufficient rictional contact to retain the parts in their adjusted positions. It will be. noted that the segment `58 is provided with an offset portion, or shoulder, 61 arranged inline `with a pin 60 ,carried by the cam 44 vof the unit l,balance mechanism. The

arrangement of theshoulder andthe'pin60 withv relation to thebperati'ng member 'or indicator 64 is such that when Ithis indicator is moved from its normal position, as shown in Fig. 5, the toothed vsegment 58 will be moved into engagement with the pin 62 and the cam44'will be rotated in the same direction that it wouldbe rotated if an article 4 had been placed' in the unit pan 41, thereby carrying [the indicator chart 52 into its inclined position and causingit to 1ntersect the vindicator wire 26. The positionof the chart will, of course, 'correspond exactly to. the position of the'. price perrpoundindicator l (S4-65.' v.When the commodity', the value of which 4`is to be computed, is placed upon the platform the wire 26 will be moved. transversely a distance 'corresponding to the weight 'ofthe commodity andthe graduation on'the chart which isintersected by the wire will represent the. value of the commodity on the load latform@ l A If the value is computed in umts of one cent the number 1 p series ofnumerals on lthe chart 52 maybe utilized as value indications or, if desired,

a separatel series -of value indications may be applied tothe chart, the, value 'indications being preferably in 'a different color from thev counting indications so as to avoid confusion and-facilitate a quick reading of the chart. For-example, if said price per pound indicator is set at the-numeral 30 the chart :wil'l be moved vto such apposition, that one pound on the load platform will cause the indicator wire 26 to intersect thecenter line of the*v chart 52 at-the 30th graduation'from zero; two pounds, at the th` graduation, etc. It willbe apparent that when the price A indicator, or (price per pound setting device,

64 is adjuste the movement of the' cam 44 willpermit the lever 38 of the unit balance j to move downwardly under the weight of the unit pan but this is immaterial because the',indicator chart 52 for -unit of another class o` the unit pan is not in usev and its position does not affect the operation of the price computing devices. When the price per pound lsetting handle is in its normal position, as shown in Fig. 5, it will be obvious that an article placed in the unit lpan 41 will a-ctuate the unit balance mechanism independently of the price per pound mechanism and the counting will be e ected in the same manner as if the price per pound mechanism were not present. It will be apparent that in this particular form of thedevice, the

. pivotal point of the indicator chart 5 2 must be arrangedpon an axis coincident with the zero 4graduation on the chart in order. that 'ting theindicatorchart according to various For. example, the

units of computation. operator of aA counting scale is sometimes called v-upon 'to count at fre uent intervals articles of the same kind. I these articles are so small that it is desirable to place a relatively. large number of the same on the unit lreceptacle in order to move the indicator chart to a position in which a satis- .factory reading may be taken, it is necessary to count out this number of parts onto the unit receptacle each time articles of this'4 kind are to be counted. This reiluires'time and there is always a possibility oi an error in the count which wouldl beso multiplied .as to cause a materialerror in the computation.

Under .these circumstances vthe chart 57 in-y stead -of being provided with price per pound graduations may be provided with a marking.

or graduation to-indicate the positionof the indicator I chart for this particular unit. Thus when the operator is called uponv to count articles of 'this'kindit is only necessary to set the indicator 64-65 on this mark and the indicator chart will be moved to the same position that it would have been moved by` the proper number of articles on the unit -receptacle. 'Of course the chart may beprovided withany suitable number of'marks lor graduations to indicate the unit position for articles of various kinds and these markin may be given index numbers so that they can be readily identified. A. single 1graduation may represent the unit for a single class of articles or for several classes of articles. For example, if the unit of one class ofY articles consists of fortyv of s/uch articles, the total weight of which is one ounce, and the articles comprises fifty such articlesthe weight of which is also one ounce, the indicator 644-65 would be set to the same position on the chart 57. In

this way quick accurate setting of the inv.

, it is only necessary to duplicate the computactuated by the load balance.

ing indicators on the customers side of the machine. In the combined form of the scale I have shown this duplication of the indicating members, a secon-d chart 152 being mounted on the pivot bar 49 and arrangedadjacent to the customers side of the machine. -A second link 125 is interposed between the yoke shaped arms 22 and 23 and provided with an indicator wire 126. Consequently the movements of the two computing indicating members will correspond exactly to the movement ofthe indicating members 52 and 26 and like computations will be indicated on both sides of the scale. The only change necessary in the mechanism to provide these duplicate indicators is to so mountthe bracket 127, (Fig. 7) on Awhich the pivot bar 39 of the unit balance lever 38 is mounted, and the pivot bar^49, which carries the charts 52 and 152, that the link 125 and chart 152 may extend between the same andthe adjacent side wall of the casing, it beingv understood, of course, that the side walls of *the casing are provided with sight openings, preferably closed by glass, through which the positions of the indicating members may be seen.

In both forms of the device above described,` the chart 52 has been shown as the indicating member which is tilted by the unit balance or by the price setting device and the indicator wire has been shown as It will be obvious, however, that as far as the operation of the scale is concerned, it is immaterial which indicating member is connected with the load balance and which is connected with the unit balance or the price per pound setting device, but a wider range of' operation can be had by connecting the chart with the load balance. In Figs. 14 to 17 I have shown a modified form of load actuated mechanism for operating the indicating member which is connected with the load balance, and in these figures I have shown the chart as carried by this mechanism and moved transversely thereby. As shown in Fig. 14 the main lever 3 of the load balance is connected by the stirrup 13 and the strap 14 with the cam 15 and this cam is mounted on the pivot bar, or shaft, 16, in the manner heretofore described. Instead of providing the link 25 and connecting the same with the .tal position.

shaft 16 by the arm 22 I have, in this form ot the device, mounted on the shaft 16 a segment 69 which is counter weighted at 70. A corresponding segment 471 is pivotally mounted on the casing 2, as shown at 72, on. an axis parallel with the axis of the shaft 16,

andis counter weighted, as'shown at 73.

that position. As here shown, each segment,

69 and 71, is connected with the'plate 74 byl means ot ribbons, or straps. Each segment hassecured to the right hand end thereof, as shown in Figs. 14 and 16,straps 77 and 78 the opposite ends of which are secured to the plate, or bar, 74, adjacent to the left hand ends of the respective segments, the plate orbar resting upon the segments. A third strap 79 is secured'to each segment near the lett hand end .thereot` and in the present instance between the straps 77 and 8, and these thirdstraps are' connected at their right hand ends with the plate 74, afl-g jacent to the right hand ends ot the respective segments.- `It will be apparent, therefore, that when a load is placed on the loadv platform the segments 69 andy 71 will be actuated in the same manner ,that the arms 22 and 23 of Fig. 1 are actuated andthat these segments will carry with them in their movement the plate 74 on which the chart 75A is mounted. The arrangement ofthe segments with relation to the plate 74 is such that the chart will not only be maintained in a vertical position but will be held against vertical movement so that the graduations thereon will always occupy 'a fixed horizon' The Astraps 77, 78 .and 79 being drawn taut and 4forming a tight firm i connection between the plate andthe segments there will be no lost motion and the. movement of the segments will be accurately transmitted to the chart. If desired, a stop.. such as a roller 83, may be arranged above 'the plate 74 to positively hold the same agamst vertical movement. The other indicating member, or wire, 80 is mounted Vfor movement by the unit balance into an inclined position in which it will intersect the centerline of the chart. As here shown, a wire supportingmember, or frame, 81 is carried by a bracket 82 rigidly secured to the pivot bar, or shaft, 49 of the unit balancev i ferent weight in counting.

shown in Figs. 1 to 17, I am enabled to utilize a single series of graduations to compute a result based on various units of computation, such as different prices per pound in determining money values or units of dif- This results from the fact that the significance of the gradua'tions on the chart change with each change of the unit of computation, that is, the divisions of movement of the load-actuated indicating member, as established by the graduations on the chart, increase'v in distance as the weight of the unit increases, when counting, and decrease in distance as the price per pound increases, when computing money ralue. In other words, as the weight of the unit increases, the load-actuated indicating member moves a` greater distance for each graduation on the chart and as the price per pound increases, the load-actuated indicating member moves a lesser distance for each graduation on the chart. For example, if, when the device is used'as a counting scale, a unit weighing one ounce is placed in the unit pan, one

pound in Weight of such units on the load platform will move the load actuated indieating member such a distance as to cause the wire to intersect the center line of the chart at the sixteenth graduation, each graduation thus representing a single unit. If the unit `weighing two ounces is placed in the unit receptacle one pound in weight of such units on the load platform will cause the load actuated indicating member to move the same distance but because of the altered position of the chart the wire will register with the eighth graduation thereon, thus indicating that there are eight articles on the load platform. Likewise, in computing money values if the price per pound indicator is set at ten cents a pound one pound on the load balance will cause the wire to intersect the center' line of the chart at the tenth graduation, indicating ten cents. If the price per pound setting device is set at twenty cents a pound, one pound on the load balance will cause the wire to intersect the cent'cr line of the chart at the twentieth graduation. Thus in each instance the change in the unit of computation changes the significance of the value graduations on the chart, this being accomplished without in any manner changing or affecting the weighing mechanisms. i

Further, it will be apparent that with this mechanism the changing of the unit of computation does not affect or in any wise displace any part ofthe wei hing'mech- .anisnu and therefore, it is possi le to simultaneously indicate both the result of the computation and the weight in pounds and ounces.

It will also be noted that because of the manner of changing the significance of the graduations on the computing chart I am enabled to mount the unit value, or price per pound, chart on a fixed, or dormant, part of the mechanism. Therefore, this unit value chart may be replaced at Awill by other unit value charts to change the assortment and 85 which support a segment 86 which constitutes in efect a pendulumsegment. This segment may, if desired, be formed in two parts separated one from. the other but rigidly connected throu h their axes to a common supporting mem er, such as a shaft 87. This segment has connected with one end thereof, the left hand end in Figs. 18 and v19 straps, or ribbons, 88 and 89 which are connected at their opposite ends to cross ties between the bars, 0r tracks, 84 and 85, as shown at 90. A third ribbon, or strap, 91 is connected at one end with the right hand end ofthe segment 86 and at its other end with a cross tie extending between the bars Sll'and 85, as shown at 92. The straps, or ribbons, are drawn taut to hold the segment firmly in contact with the supporting bars as it rocks to and fro thereon. The upper surface of the bar. 85 is flat, as is the corresponding part of the segment 86 which engages that bar. The upper edge of the `bar 8a, ho-wever, is beveled on its opposite sides and the adjacent portion of the segment 86 is provided with a V-shaped groove 93 to receive the beveled edge of the bar and thus hold the segment against crosswise displacement with relation to the bars. Rigidly mounted 0n the shaft 87 is a cam 94 which `is connected'by a strap, or ribbon 95 with the nose end of the main lever- 3 of the load balance. The chart, which is shown at 96 is connected with the segment for movement therewith as the latter rocks on the bars 84 and 85 but is so mounted that it will be retained in an upright, or vertical,l position in all positions of the segment. In the present instance, the shaft 87 which is arranged at the axis of the segment pro- 'jects beyond the ends of the hub thereof andv forms trunnion bearings for a yoke 97 to which the chart 96 is rigidly securedvx In this. mannery the chart is pivotally supported from the axis of the segment but the greater portion of its weight is below that axis so that it will tend normally to hang in a vertical position. However, to prevent the chart from having an oscillating movement about' l its axis Il have provided the oke 97 with' a guide arm 98 at the outer en of which isa in 99 which travels in the slot 100 formed Aetween two stationary bars 101, which are rigidly secured to the casing. Preferably the pin 99 is so arranged in the slot that when the chart is at rest in a true Vertical position the pin will not touch either Wall of the slot. 'iut/will float between the tivo bars. The Weight indicator 102 is also carred by the segment 86 and is so arranged that as movement is imparted to the segment the indicator willv travel overvthe weight chart 103.

A The vunit balance mechanism consists ot a main lever 101'pivotally mounted at 105 in bearings formed in a bracket 106 carried by the casing and having pivotally connected at its outer end a unit pan 107. A

'strap 102%l is connected at its lower end with a. lever'l04 and at its upper end with a cam 109 rigidly butadjustably mounted upon a shaft, or pivot bar, 110 journaled in suitable bearings carried by the casing ot' the scale. Rigidly secured to the shaft, or pivot bar, 110 is an arm 111 on which is mounted supporting member 112 which carries a` second indicating member, or wire, 113. It so supports' the same that when the parts are in their normal position thel wire will register 'with the center line of the chart 96. If desired, a spring 114 may be interposed between the Wire and its point of connection .with the supporting member 112 at one end thereof to hold the Wire taut.

' 'Preferably the segment 86, with its associated parts, exclusive of cam 94,` is-not counterbalanced varound its axis, s o that 1t Wlll, 1n ltself, serve in part as the counter- "balance for the lever ot the load. balance, in

lieu of the usual pendulum; in order Words, it is desired to have'the segment 86 and the parts attached to it serveas the pendulum counterbalance for the main lever 3, in-

which case the segment becomes in etlect a pendulum. To this end, it is necessary to establish the` center of gravity of the segment, and the parts attached to it, in proper relation. to the axis'of the segment, in order to get the right counterbalancing effect. This center` of gravity mustbe established substantially along the line A as the counterbalancing actionis that of a. descending pendulum. It will be noted that practically all of the mass of the segmentis on the loiver left hand side of the'said 1ine;

ward and rom said line. Not only must.

the. center of gravit be established on the line A but it must located at the pro er distance from the axis of the segment. or

that purpose, the weight 115 is made adjustable parallel with said line. Thus it will be seen that the adjustment of the Weight 116 acts to distribute the Weight of the whole mass equally on each side of the line A and that the adjustment of the weight 115 acts to locate the center'oi gra-vitlv of the whole mass at the proper distance from the axis' without affecting the distribution of the mass on each side of said line. The arm 111 of the unit balance mechanism is provided with weights 117 and 118, the purpose of which is substantially the same as that of the Weights 115 and 116, namely to cause the arm and the parts attached to it to become in etl'ect a pendulum to counterbalance the load in the unit pan 107 through the lever 104.v As the counterbalancing action ot' the arm 111 and the parts attached to it is that of a. rising pendulum, the center ot gravity of said counterbalance should be established substantially along the line B.

The operation of this form of the device is substantially similar to that above described and it will he apparent that the load on the load platform causes the movement of the main lever 3 of the load balance and its counterbalancing segment 86, resulting in a transverse movement of the chart 96, this movement being in direct proportion to the load on the platform. When the unit of computation is placed in the an 107 the lever 104 will be actuated and t 1e Wire su porting member 112 together with the in icating wire 113 will be moved about the axis of the pivot bar 110 a distance roportionnte to the'vveight of the unit, Tie lndicating members being thus brought into intersecting relation the number of parts in the load on the platform will be indicated by that graduation on the chart' which is intersected'by the indicating wire. l

While I have shown and described certain embodiments of my invention I lWish it to be understood that Ido not desire t'o be limited to the. details thereof'as various modifications may occur to a person skilled in the art. For example I have shown the load balance as comprising a lever 3 of the first order, which is c ounterbalanced by a pendulum of the reverse type, and I have shown the unit balance as comprising a 'levert38 of `the second order,l which is counterbalanced by a rising pendulum, `in the present instance the chart 52. It will be obvious, however, that either lever ma'y' beof any suitable character and may becounterbalanced in any suitable manner, this beingI a matter of expediencyand depending lar ely upon the deslgn of the particular mec anism in which the invention is embodied.' Further, the indicating members maybe associated wlth the respectivejbalances in any suitable manner. As here shown the indicating member 26 is mounted independently of the load balance and is operatively connected therewith in uch a manner that it does not effect the balaneir operation. The indicating member or c art 52l is so connected with the unit balance that it forms al pendulum thereforf and in effect constitutes a part of the balance. Again it will be obvious that these are matters of expediency and that either in- 'dicating member may be 'a part of its balance 'or that both may be independent of their respective balances.

Having now fully described my invention what I claim as new and desire to secure by" Letters Patent, is:

1. In a computing scale, a load balance. a unit balance separate `from and operable independently of said load balance, and cooperating indicating members actuated by the respective balances and movable there byf-into intersecting positions to eiiect a computation at the point of intersection.

2. In a computing scale, two elongated indicating members arranged normally in substantially parallel positions, one of said members being movable toward and from its normal position'and the other of said members being movable into a position in which will intersect, the iirst mentioned member, means for adjusting one of said indicating members' according to a unit of computation, and other means for adjustingr the other indicating member. Y

'3. In a computing scale, two elongated indicating members arranged normally in substantially parallel positions, i' one of said members being movable toward and from its y norma/l position and the. other of said mem- 'bers lbeing' movable to a position in which; it

will intersect the irst mentioned member, a load balance comprising a lever which is operatively connected with one of said members, said member being-mounted independently of said lever, and means separate from said load balance to position the other of said members laccording to a unit o computation.

4.- In a computing scale, two elongated indicating members arranged normally in substantially parallel positions, one of said members being movable toward and from its normal position and the other of said members being movable into a position in which it will intersect the'first mentioned member, a vload controlled device operatively connected with one of said members, and a unit controlled device'operatively connected lwith the other of said members.

5. In a computing scale, a chart having a series of' graduations extending lengthwise thereof, an indicating member supported independently of said chart, one of said membersbeing movable transversely toward and from its normal position and the other-,of said members being movable into a position to intersect said transversely movable member, a load balance comprising a. lever which is connected with one of said members, said member being supported independently ot said lever. and means for positioning the other of .said members according to a unit of computation. f

6. In a computing scale, a chart having a series of graduations extending lengthwise thereof, an indicating member supported independently of said chart, said chart and said indicating member being arranged normally in substantially parallel positions, one of said members being movable transversely toward andffrom its normal position, and the other of said members bein movable into a position intersecting said transversely movable member, a load controlled device operatively connected with one of said members, and a unit controlled device operatively connected with the other of said members.

7. In a computing scale, a chart having f one of said members being movable transversely toward and from its normal position, and the other of said members being movable into a position intersecting said transversely movable member, a load controlled device operatively connected with one of said members, a unit controlled' device operatively connected with the other of said members, and means other than said unit controlled evice to position said last mentioned mem- 8. In a computing' scale, a chart having a series of graduations extending lengthwise thereof, an indicating member supported independently of said chart, one of said members being movable transversely'toward and from its normal position andthe 'other of said members being movable into a position to intersect said transversely movable member, a load balance comprising a lever which is operatively connected with one of said members, a stationary chart, and means for adjusting the other of said members with relation to saidvstationary chart.

9. In a computing scale, a. chart having a series of graduati-ons extending lengthwise thereof,'an indicating member` supported in- I dependently of saidchart, said chart and said indicating member being arranged normally in substantially parallel positions, one l connected with the'other of said members, a

stationary chart, and means other than Said unit controlled device for adjusting said other member with relation to said stationary chart. Y

10. In a computing scale, a load controlled device, a weight indicating member connected with said load controlled device, a count indicating member also connected with said load controlled device, and movable thereby,- a unit controlled device, and .a second count indicating member operatively connected with said unit controlled device and adapted to be moved thereby into a position intersecting the first mentioned count indicating member.

11. In a computing scale, a load balance, a weight 'indicating member connected with said load balance, a count indicating` member operatively connected with said load balance and movable Irelatively thereto, va Second count indicating member mounted 4for movement into'a position intersecting the first mentioned count indicating member, and means independent of said load balance for positioning said second count indicating member. 4

12. In a computing Scale, a load controlled lever, two cooperating indicating members mounted for movement relatively one to the other, and so arranged that one of said indicating members may be caused to intersect the other indicating member, to eiect a computation at the point of intersection, one of said indicating members being supported independently of said lever and operatively connected therewith, and means separate fromv said load controlled lever to actuate the other indicating member.

13. In a computing scale, a load controlled lever, two cooperating indicating members mounted for movement relatively one to the other and so arranged that. one of said indicating members may becaused to intersect the other indicating member to effect a computation at the point of intersection, one of said indicating members being supported independently of said lever and actuated thereby, and a unit controlled device -operatively connected with the other indicating.y member.

14. In a computing scale, a load controlled lever, two cooperating indicating members mounted for movement relatively one to the other and so arranged that one of said indicating members vmay be caused to ins-I tersect the other indicating'member, an operative connection between one of said indicating'members and said lever, a unit controlled device operatively connected lwith the other indicating member, and means other than said unit controlled device for actuatngthe last mentioned. indicating member.

15. In :1p-'computing scale, a weight controlled device, a supporting device operatively connected with said weight controlled device, an indicating member carried by said supportingfdevice, a second indicating member movable into a position in which it will intersect the iirst mentioned indicating member to effect a computation at the' point of intersection, and means independent of said weight controlled device to'position said sec- ,y

ondl indicating member.

16. In a computing scale, a weight controlled device, a pivotally mounted'supporting device operatively-connected with said Weight controlled device, an indicating member carried by said supporting device, a second indicating member movable into a position in which it will intersect the first mentioned indicating member to effect a computation at the point of intersection, and means independent of said weight controlled device to position said second indicating member.

17. In a computing scale, a load balance, a pair of pivoted arms arranged substantially parallel one with the other, one of said arms being operatively connected with said load balance, a connecting member pivotally connected with both of said arms, an indicating member carried by said connecting member and movable by the movement of said arms, a second indicating member movable into a cooperating position with relation to the rst mentioned indicating member, and means independent of said load balance to position said second indicating member.

18. In a computing scale, a load balance, a pair of pivoted arms arranged substantially parallel one with the other, one of said arms being operatively connected with said load balance, a connecting member pivotally connecting both of said arms, an indicating member carried by said connecting member and movable by the movement of said arms, a second indicating member movable into al cooperating position with relation to the first mentioned indicating member, and a unit controlled device operatively connected with said second indicating member. l

1.9. In a computing scale, a load balance, a pair of pivoted arms arranged substantially parallel one with the other, one of said arms being operatively connected with said load nected with both of said arms, an indicating member carried by said -connecting member and movable by the movement of said arms, -a second indicating member` movable into a cooperating position with relation to the first mentioned indicating member, a price per pound chart, and a device adjustable with relation to said price per pound chart and operatively connected with said second indicating member. v

20. In acomputing scale, a load balance. a pair of pivoted arms arranged substantially parallel onewith the other, one of said as i balance, a connecting member pivotally connemesi.

arms being operatively connected withsaid load balance, a connecting member 'pivotally connected with both of said arms, an indicating member carried by said connecting member and movable by the movement of said arms, a second indicating member movable into a cooperating position with relation to the first mentioned indicating meinber, a unit controlled device separate fror. said load balance and *operable independently thereof, an operative connection between said unit controlled device and said second indicating member, a price per pound chart, and an actuating member adjustable with relation to said price per pound chart and operatively connected with said second indicating member, whereby said second indicatin member may be positioned either by sai unit controlled device or by said price per pound actuating device.

21. In a computing scale, a load balance. a

lpair of substantially parallel levers each pivotally mounted near one end. a link connecting said levers one to the other, an operative connection between one ot' said lever; and said load balance. an indicating member carried by said link, a unit controlled device, and a second indicating member operatively connected with said unit controlled device and adapted to be, moved into a position to intersect the indicating member cai'- ried bv said link.

22. In a computing scale. a load balance, a pair of substantially parallel levers each pivotally mounted near one end, a link pivotally connected at its opposite end: with the respective levers and having parts extending above and below the line of said pivotal connection, a wire carried by said link and supported in a vertical position. a unit controlled device separate from said load balance, a chart pivotally supported near one end and arranged normallyin a line parallel with said wire, and an operative connection between said chart and said unit controlled device whereby said chart may be moved into a position in which it will be. intersected by said wire.

23. In a computing an indicating member operativelyy connected with said load balance, a second indicating member cooperating with the rst. mentioned indicating member, a unit controlled device operatively connected with said second indicating member, and a price per pound adjusting device operatively connected with said second yindicating member, whereby said second indicating member may be actuated by either said unit controlled ldevice or said price per pound adjusting device.

24'. In 'a computing scale, a load balance. an indicating member operatively connected with said load balance, a pivot bar, a second indicating member connected with 'said pivot scale, a load balance..

-ond indicating member connected with said .pivot bar, a cam secured to said pivot bar,

a unit receptacle connected with saidv cani,

a segmentmou'nted for movement about the axis of said pivot bar, said segment and said cam having parts adapted to bebrought into engagement when said segii'ieiit `is moved in the direction in which said cam is moved by said unit receptacle, and means for actuating said segment.

26. In a computing scale, a load balance, an indicating member operatively connected w`th said load balance, a pivot bar, a second indicating member connected with said pivot bar, a cam secured to said pivot bar, a unit receptacle connected with said cam, a toothed segment mounted for Arotation about the axis of said pivot bar, a pin carried by said cam and arranged in the path of said segf ment, a pinion meshing with saidztoothed segment, an operating handle connected with said pinion, and a price per pound chart over which said handle is adjusted.

27. In a computing scale, a load balance comprising a lever, an indicating member supported independently of said lever vtor transverse movement relatively thereto, a connection between said-indicating member and said lever to cause said indicating meniber to be actuated by the load on said load balance,l a second indicating member pivotally supported and movable into a position in which it will intersect the first. mentioned indicating member to eii'fect a computation at the point of intersection, and means independent of said load balance for actuating said second indicating member.

28. In a computing scale. a loai balance comprising a lever, an indicating member supported independently of said levenfortransverse movement relatively thereto, a connection between said indicating member and said lever to cause said indicating mem- `ber to be actuatedv by the load on said load balance, a second indicating member pivl'otally supported and movable into a position in which it will intersect the first mentioned indicating member, a price per pound chart, and means for positioning said second indicating member with relation to said i price per pound chart.

29.`I,n a computing scale, a load balance. a unit controlled device separate from said load balance, a vertically arranged indicat ing member mounted for movement transversely to its length, an operative connection betweeril said Aindicating member and said load balance, a second indicating member pivota supported n ear lone end and movable into a osition in which it will intersect the first mentioned indicating mem- 'ber, and an operative connection between said second indicating member and said unit controlled device, one of said indicating I i members comprising a chart having a longitudinally arranged series of gradnations thereon and a plurality of series of numer als associated with said graduations.

30. In a computing scale, a load controlled member, a connterbalance operatively connected with said load controlled member, a

' movable indicating member operatively connected with said counterbalance, and a second indicating member movable intov any Cil one Uof a plurality of 'positions intersecting the first mentioned indicating member to effect a computation at the point of inter y section.

31.- In a computing scale, a load balance comprising a shiftable counterbalance, a

. movable indicatingmember operatively connected with said counterbalance, a second indicatin member movable into any one of ,A a plura it lof ositions intersecting the first mentione in icating member to effect a computation at the point of intersection, and means for adjusting-said second indicating member according to a unit of computation.

32. In a computingV scale, a load balance comprising a shiftable counterbalance, an indicating membervperatively connected with lsaid counterbalanceg a unit controlled* device, a second indicating member o ratlvely connected with said unit control ed device' and movablentoa osition to intersect the first mentioned -indicatin member and 'to effect a computation at t e point of intersection. v

33. In a scale, tv'vo separate load actuated weighing mechanisms, indicating devices controlled bythe movements vimpartedto the respective weighing mechanisms by the loads thereon tocompute the ratio between said loads, and means other than the load` for .causing the indicating device for'. the smaller" capacity mechanism to cooperate with the indicatin' member that the significance of the gra nations on said chart may be varie 35. In a scale,two cooperating indicating,

eating members to move the same relatively thereto, and means independent of said load actuated weighing mechanism for moving the other indicating member to different positions in which it will intersect the first mentioned indicating member.

37. Inra scale` a loadactuated weighing mechanism comprising a lever, a chart having value graduations. and an indicating membercooperating with said chart, one of said parts being supported independently of said lever andoperatively connected therewith and the other of said parts being movable independently of said Weighing mechanism, and means for moving said other of said parts to different operative positions with relation to the first mentioned part to cause the significance ofthe graduations on the .chart to be varied. v

38. In a scale. a load`actuated weighing mechanism, a chart having value graduations, and an indicating member cooperating with said'y chart, one of said-parts being actuated by said weighing mechanism andthe other of said parts being movable independ ently of said weighing mechanism. a unit controlled ,device` and means for actuating the other "of said parts lby said unit controlled "device or independently thereof.

on the 'chart may be varied.

39. In a scale. a load actuated weighincr mechanism comprising a'lever, anindicating member supported independentlyof said lever and actuated thereby, a chart having:

"whereby the significance of ther graduations .a single. series-cf value graduations and lmounted ,for movement independently of said load actuated mechansn'l.v and means for positioning said chartwith relation to saidindicating member to cause the signific'a-ne ofthe graduations thereon to be varied. 40. Inj a, scale, load actuated weighing Y mechanism, an indicating'member actuated thereby,.a chart coodperatingwith said indicating4 member an having value graduations and mountedl for movement independently of said load actuated weighing mechap either b nism, a unit controlled device, means for positioning said chart by said unit controlled device or independently thereof, whereby the significance of the graduations on the chart may be varied.

41. In a scale, load actuated weighing mechanism, an indicat-ing member actuated thereby, a chart having value graduations, mounted for movement independently ,of said load actuated weighing mechanism and cooperating with said indicating member to indicate the result of a computation, a unit value chart, and an indicating device cooperating therewith and having means to establish the significance of the graduations on the first mentioned chart.

42. In a scale, load actuated weighing mechanism, a value indicating member actuated thereby, a second value indicating member mounted for movement inde ndent of said load actuated weighing mec anism, means for positioning said second indicating member for cooperation with the first mentioned indicating member according to a unit of computation, and a chart supported independently of said weighing mechanism to indicate the value of the units of computation, whereby the nature and assortment of said units may be changed without affecting or displaoingany member of the load actuated weighing mechanism.

43. In a scale, load actuated weighing mechanism, a value indicating member actuatcd thereby, a unit controlled device, a second value indicating member mounted for movement independent of said load actuated weighing mechanism, means for positioning sai second indicating member for cooperation with the first mentioned indicating member-,according to a unit of computation,

the movement of said unit controlled` evice or independent thereof, and a chart to indicate the value of the units of computation, said chart being supported on a dormant part of the mechanism whereby the nature and assortment of said units may be changed without ai'ecting or displacing any member of said weighing mechanism or unit controlled device.

44. In a scale, two separate weighing mechanisms of different capacities,- means for causing the movements imparted thereto by the respective loads to cooperate to compute the ratio between' the loads, means other than the load for causing the movement of the smaller capacity mechanism to cooperate with the movement of the larger capacity mechanism according to a u'nit of computation to compute the value of the larger load, and means for indicating the weight of the larger load.

45. In a scale, load actuated weighing mechanism comprising a lever, cooperating` indicating devices, one of said indicating devices comprising a chart having a single series of. graduations and one of said indicating devices being supported -independently of and actuated by said lever, vand means comprisingr one ofv said indicating devices and operable independently of said' weighing mechanism to change the sgnicance of the vgraduations on said chart.-

46. In a scale, a load actuated weighing mechanism comprising a lever, cooperating indicating devices, lone of said .indicating devices comprisinga chart having a single series of value graduations the signiiicance of which may be varied in accordance with av selected unit of computation, one of. said indicating devices being supported independently of and yactuated'by said-lever', and

means comprising one of said indicating devices andv operable independently rof 'saidl weighing mechanism of computation.

47. In va scale, a mechanism comprising a' lever, cooperating indicating devices, one ofl said indicating deto establish isaid-unit -ss load actuated Weighing vices being supported independently of and 'I actuated by said lever and one of said indicating devices comprising'a chart having a single series of graduations the significance" of which may be varied inu accordance with a selected unit of computation, means comprising one of said.1nd1cating. dev1ces for establishing said unit of computation, vand means for changing the nature and assortment of said units without affecting or displacing any member of the weighing mechamsm.

48. In a scale, load' actuated weighing mechanism comprising a lever, cooperating4 indicating devices, one of `said indicating devices comprising a chart having a single series of graduations, one of Vsaid indicating devices being actuated by said lever,- means comprising the other of said indicat-l ing devices and operable independently of said weighingmechanism to change'the sig- 'nificance of the graduations on-said chart,

and means for indicating the Weight Of'the load.

49.- In a scale, two indicating members 50. In a computing scale, a load balance,-

an indicating member mounted for transverse movement, a connection between said indicating member and said load balance, to cause said indicating member to be actuated by the load on said'balance, a second 

